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GILPIN MOORE, or MOLINE, ILLINOIS, AssIeNOR Tof-DEERE a COMPANY,

OF SAME PLAGE. f

Letters Patent No. 67,131,0Zated July 23, 1867.

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TO ALL WHOM IT MAY CONCERN: j

Be it known that I, GILPIN MOORE, of Moline, in the county `of RockIsland, and State of Illinois, have invented certain new and usefulImprovements in Dies for Making Plough-Braces; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, making part of thisspecification, and to the letters of reference marked thereon, likeletters indieating like parts wherever they occur.

To enable others skilled in the art to construct and use said invention,I will proceed to describe it.

My invention consists in the construction of a set of dies for themanufacture of braces for ploughs, as hereinafter described. l

Figure 1 is a face view of the upper die.

Figure 2 is a similar view of the lower die.

Figure 3 is a perspective view of the dies united.

Figure 4 is a side view of the dies, representing the positions of theblank during the'process of being operated upon. 1 v

Figure 5 is an edge or end view of the lower die, with the upper dierepresented in place in red lines.

In the manufacture of ploughsof wrought iron and steel, 'such as areused in the prairie soils of the West and South, it is necessary to usea brace between the rear portions of the land-side and the mould-board;and this brace has to be madeof a special form, adapted to the size andstyle of' plough. Heretofore it has been customary to forge these bracesby hand, which is a slow` and expensive process. Besides, when thusmade, it is almost impossible to make them perfectly uniform, therebyrendering the plough, when completed, more or less imperfect, andconsuming much time in the iitting of the brace and the other parts.Toobviate these diieulties,-I propose to form these braces by means ofdies, which I have constructed. for that-purpose.

I construct my dies of two blocks of metal, as represented by Aand B,the former representing the upper andthe latter the lower die. In theface ot the block B, I cut a recess, a, Of a size corresponding to theblank' of which the brace is to be formed, these blanks being first cutin proper lengths from a bar of iron or steel of suitable width andthickness. This recess a is straight on the horizontal face of'theblock, the latter being bevelled at the line e near one edge, and therecess a being continued ot' the same width and depth along the face ofthe bevelled portion also, as shown in fig. I. The upper block A isconstructed with a smooth'i'ace, to fit on the face of B, and has aprojecting lip, C, corresponding with the bevelled edge of block B, asshown in g. 3. The blank being placed in the recess a, and the diesforced together, the end ot' the blank, where it projects over theinclined or bevelled face, is bent ,to correspond, and, when taken out,has the form representedy by a2, the bent portionbeing indicated by o.Anotherrecess, b, is also formed in the block B, as shown in fig. 1, ofproper size to receive the piece a edgewise, the bottom of said recessbeing formed on a curve, as represented by the red lines -in fig. 4, anda recess, b1, being formed in the upper block A, as represented in iig.2, this latter recess being made convex on its surface, and running outto the surface ,at the line e, where the projecting lip C begins, therear end of said recess being deep enough to permit the end of the blankto rise up therein, as it is bent into the form representedby ZF, whenthe dies arengain brought together. A portion of the face of the block Bis made lower than the rest, as represented by D vof fig. I, the block Ahaving a corresponding projection, D. The rear portion of the face ofblock'B is then bevelled oli` along the lin'e u, at an angle of aboutforty-five degrees, more or. less, forming` a depression, as shown at Pof iig. 1, the block A having a corresponding projection, P', asrepresented in iig. 2. A horizontal lip, r, projects from the side ofthe plane part of the face of B, as shown in gs. 1 and 5, to hold thebrace b2 in position while being iinished.

After it hasbeen bent into the form represented by b2 it is placed onblock B in the position represented by c` of tig. 1, when, by pressingthe dies together, the end is bent down over the inclined surface, alongthe .line u, which completes the brace, and giving to it the formrepresented by c2 in perspective, the end o being thus bent and made tostand at just the angle required to t against the land-side, and the endn being bent at the proper angle to tit the mould-board, while the bodybetween these parts is curved or bent edgewise suiiciently to bring theouter faces of the parts n and o at the required inclination in thehorizontal plane, to adjust them to the corresponding surfaces of theland-side and mould-board.

By these means I ain enabled to form the braces Withv great rapidity andperfect uniformity, and thus to l make a. better and cheaper plough.Having thus described my invention, what I claim, is

The dies A end B, 'constructed substantially as shown and described, formaking plough-braces, as set forth.

GILPIN MOORE.

Witnesses:

S. H. YEME, J. C. A. Promul..

